Is this normal?

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Hello! I’m 35 wks and have been feeling terrible is this normal? I experienced seeing stars when standing on and off 2wks ago followed with, extreme shortness of breath walking around the house or standing over 10 mins. Light headed unclear thoughts. I even to the ER around 3 days ago due to this everything was ok besides highish Bp but it went back down without any medication 128/70 pretty quickly. Also low iron I’ve met with my OB she said it’s normal to feel short of breath. Plus started iron supplements. But I’m literally stuck laying down or siting I’m confused if this is just I’m my head or what could be wrong, or if this normal.